Bernard, Theos
Rider , 1940
Buku Teks
Bernard, Theos
Philosopical Library , 1947
Buku Teks
Vincent, Irene Vongehr
University of Chicago, [date of publication not identified]
Buku Teks
Coelho, Paul, author
Gramedia Pustaka Utama, 2011
Buku Teks
edited by Dafu Jiang, Yu Mang, Genevieve Rudolf
CYPI Press, 2009
Buku Teks